1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 * 29 * @(#)rpc_sample.c 1.9 94/04/25 SMI 30 * $FreeBSD: src/usr.bin/rpcgen/rpc_sample.c,v 1.9 2005/11/13 21:17:24 dwmalone Exp $ 31 * $DragonFly: src/usr.bin/rpcgen/rpc_sample.c,v 1.4 2004/06/19 16:40:36 joerg Exp $ 32 */ 33 34 /* 35 * rpc_sample.c, Sample client-server code outputter for the RPC protocol compiler 36 * Copyright (C) 1987, Sun Microsystems, Inc. 37 */ 38 39 #include <stdio.h> 40 #include <string.h> 41 #include "rpc_parse.h" 42 #include "rpc_scan.h" 43 #include "rpc_util.h" 44 45 static char RQSTP[] = "rqstp"; 46 47 static void write_sample_client(const char *, version_list *); 48 static void write_sample_server(definition *); 49 static void return_type(proc_list *); 50 51 void 52 write_sample_svc(definition *def) 53 { 54 55 if (def->def_kind != DEF_PROGRAM) 56 return; 57 write_sample_server(def); 58 } 59 60 61 int 62 write_sample_clnt(definition *def) 63 { 64 version_list *vp; 65 int count = 0; 66 67 if (def->def_kind != DEF_PROGRAM) 68 return(0); 69 /* generate sample code for each version */ 70 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 71 write_sample_client(def->def_name, vp); 72 ++count; 73 } 74 return(count); 75 } 76 77 78 static void 79 write_sample_client(const char *program_name, version_list *vp) 80 { 81 proc_list *proc; 82 int i; 83 decl_list *l; 84 85 f_print(fout, "\n\nvoid\n"); 86 pvname(program_name, vp->vers_num); 87 f_print(fout, "(char *host)\n{\n"); 88 f_print(fout, "\tCLIENT *clnt;\n"); 89 90 i = 0; 91 for (proc = vp->procs; proc != NULL; proc = proc->next) { 92 f_print(fout, "\t"); 93 if (mtflag) { 94 f_print(fout, "enum clnt_stat retval_%d;\n\t", ++i); 95 ptype(proc->res_prefix, proc->res_type, 1); 96 f_print(fout, "result_%d;\n", i); 97 } else { 98 ptype(proc->res_prefix, proc->res_type, 1); 99 f_print(fout, " *result_%d;\n",++i); 100 } 101 /* print out declarations for arguments */ 102 if(proc->arg_num < 2 && !newstyle) { 103 f_print(fout, "\t"); 104 if(!streq(proc->args.decls->decl.type, "void")) 105 ptype(proc->args.decls->decl.prefix, 106 proc->args.decls->decl.type, 1); 107 else 108 f_print(fout, "char * "); /* cannot have "void" type */ 109 f_print(fout, " "); 110 pvname(proc->proc_name, vp->vers_num); 111 f_print(fout, "_arg;\n"); 112 } else if (!streq(proc->args.decls->decl.type, "void")) { 113 for (l = proc->args.decls; l != NULL; l = l->next) { 114 f_print(fout, "\t"); 115 ptype(l->decl.prefix, l->decl.type, 1); 116 if (strcmp(l->decl.type,"string") == 1) 117 f_print(fout, " "); 118 pvname(proc->proc_name, vp->vers_num); 119 f_print(fout, "_%s;\n", l->decl.name); 120 } 121 } 122 } 123 124 /* generate creation of client handle */ 125 f_print(fout, "\n#ifndef\tDEBUG\n"); 126 f_print(fout, "\tclnt = clnt_create(host, %s, %s, \"%s\");\n", 127 program_name, vp->vers_name, tirpcflag? "netpath" : "udp"); 128 f_print(fout, "\tif (clnt == (CLIENT *) NULL) {\n"); 129 f_print(fout, "\t\tclnt_pcreateerror(host);\n"); 130 f_print(fout, "\t\texit(1);\n\t}\n"); 131 f_print(fout, "#endif\t/* DEBUG */\n\n"); 132 133 /* generate calls to procedures */ 134 i = 0; 135 for (proc = vp->procs; proc != NULL; proc = proc->next) { 136 if (mtflag) 137 f_print(fout, "\tretval_%d = ",++i); 138 else 139 f_print(fout, "\tresult_%d = ",++i); 140 pvname(proc->proc_name, vp->vers_num); 141 if (proc->arg_num < 2 && !newstyle) { 142 f_print(fout, "("); 143 if(streq(proc->args.decls->decl.type, "void")) { 144 /* cast to void * */ 145 f_print(fout, "(void *)"); 146 } 147 f_print(fout, "&"); 148 pvname(proc->proc_name, vp->vers_num); 149 if (mtflag) 150 f_print(fout, "_arg, &result_%d, clnt);\n", i); 151 else 152 f_print(fout, "_arg, clnt);\n"); 153 } else if (streq(proc->args.decls->decl.type, "void")) { 154 if (mtflag) 155 f_print(fout, "(&result_%d, clnt);\n", i); 156 else 157 f_print(fout, "(clnt);\n"); 158 } 159 else { 160 f_print(fout, "("); 161 for (l = proc->args.decls; l != NULL; l = l->next) { 162 pvname(proc->proc_name, vp->vers_num); 163 f_print(fout, "_%s, ", l->decl.name); 164 } 165 if (mtflag) 166 f_print(fout, "&result_%d, ", i); 167 168 f_print(fout, "clnt);\n"); 169 } 170 if (mtflag) { 171 f_print(fout, "\tif (retval_%d != RPC_SUCCESS) {\n", i); 172 } else { 173 f_print(fout, "\tif (result_%d == (", i); 174 ptype(proc->res_prefix, proc->res_type, 1); 175 f_print(fout, "*) NULL) {\n"); 176 } 177 f_print(fout, "\t\tclnt_perror(clnt, \"call failed\");\n"); 178 f_print(fout, "\t}\n"); 179 } 180 181 f_print(fout, "#ifndef\tDEBUG\n"); 182 f_print(fout, "\tclnt_destroy(clnt);\n"); 183 f_print(fout, "#endif\t /* DEBUG */\n"); 184 f_print(fout, "}\n"); 185 } 186 187 static void 188 write_sample_server(definition *def) 189 { 190 version_list *vp; 191 proc_list *proc; 192 193 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 194 for (proc = vp->procs; proc != NULL; proc = proc->next) { 195 f_print(fout, "\n"); 196 if (!mtflag) { 197 return_type(proc); 198 f_print(fout, "*\n"); 199 } else 200 f_print(fout, "bool_t\n"); 201 pvname_svc(proc->proc_name, vp->vers_num); 202 printarglist(proc, "result", RQSTP, "struct svc_req *"); 203 204 f_print(fout, "{\n"); 205 if (!mtflag) { 206 f_print(fout, "\tstatic "); 207 if(!streq(proc->res_type, "void")) 208 return_type(proc); 209 else 210 f_print(fout, "char *"); 211 /* cannot have void type */ 212 f_print(fout, " result;\n"); 213 } else { 214 f_print(fout, "\tbool_t retval;\n"); 215 } 216 f_print(fout, 217 "\n\t/*\n\t * insert server code here\n\t */\n\n"); 218 219 if (!mtflag) { 220 if(!streq(proc->res_type, "void")) 221 f_print(fout, "\treturn (&result);\n}\n"); 222 else /* cast back to void * */ 223 f_print(fout, "\treturn((void *) &result);\n}\n"); 224 } else { 225 f_print(fout, "\treturn (retval);\n}\n"); 226 } 227 } 228 /* put in sample freeing routine */ 229 if (mtflag) { 230 f_print(fout, "\nint\n"); 231 pvname(def->def_name, vp->vers_num); 232 f_print(fout,"_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result)\n"); 233 f_print(fout, "{\n"); 234 f_print(fout, "\txdr_free(xdr_result, result);\n"); 235 f_print(fout, 236 "\n\t/*\n\t * Insert additional freeing code here, if needed\n\t */\n"); 237 f_print(fout, "\n}\n"); 238 } 239 } 240 } 241 242 243 244 static void 245 return_type(proc_list *plist) 246 { 247 ptype(plist->res_prefix, plist->res_type, 1); 248 } 249 250 void 251 add_sample_msg(void) 252 { 253 f_print(fout, "/*\n"); 254 f_print(fout, " * This is sample code generated by rpcgen.\n"); 255 f_print(fout, " * These are only templates and you can use them\n"); 256 f_print(fout, " * as a guideline for developing your own functions.\n"); 257 f_print(fout, " */\n\n"); 258 } 259 260 void 261 write_sample_clnt_main(void) 262 { 263 list *l; 264 definition *def; 265 version_list *vp; 266 267 f_print(fout, "\n\n"); 268 f_print(fout, "main(int argc, char *argv[])\n{\n"); 269 270 f_print(fout, "\tchar *host;"); 271 f_print(fout, "\n\n\tif (argc < 2) {"); 272 f_print(fout, "\n\t\tprintf(\"usage: %%s server_host\\n\", argv[0]);\n"); 273 f_print(fout, "\t\texit(1);\n\t}"); 274 f_print(fout, "\n\thost = argv[1];\n"); 275 276 for (l = defined; l != NULL; l = l->next) { 277 def = l->val; 278 if (def->def_kind != DEF_PROGRAM) 279 continue; 280 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 281 f_print(fout, "\t"); 282 pvname(def->def_name, vp->vers_num); 283 f_print(fout, "(host);\n"); 284 } 285 } 286 f_print(fout, "}\n"); 287 } 288